Power outage history
Shelby County Texas
8.0hours
without power for the average customer in a typical year, 2018–2025
142nd most of 240 in Texas 1.2× the national median
Every day since 2015
Eleven years, one night at a time
Each cell is a day. The brighter it is, the larger the share of Shelby's customers who were without power at that day's worst moment.
Year by year
Hours in the dark, per customer
2024 was the worst well-recorded year, at 15 hours for the average customer. Hatched years have a thin record and are left out of the averages.
Shelby, hours without power per customer
The record
The biggest outages since 2015
Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.
| Began | Storm | Peak out | Share | Lasted | 90% restored | Customer-hours |
|---|---|---|---|---|---|---|
| Aug 27, 2020 | Hurricane Laura | 3,727 | 26% | 5.0 d | 2.2 d | 102k |
| Jun 16, 2023 | Heat | 3,770 | 26% | 43 h | 40 h | 74k |
| Feb 17, 2021 | Winter storm | 2,567 | 18% | 2.2 d | 48 h | 71k |
| Jun 1, 2024 | Flooding | 4,178 | 29% | 23 h | 16 h | 60k |
| Jun 8, 2025 | Thunderstorms | 3,609 | 25% | 2.1 d | 45 h | 60k |
| Jul 8, 2024 | Hurricane Beryl | 4,164 | 29% | 31 h | 24 h | 57k |
| Jan 10, 2021 | Winter storm | 2,097 | 14% | 40 h | 27 h | 27k |
| Apr 12, 2022 | Flooding | 1,366 | 9% | 41 h | 22 h | 17k |
| Jun 4, 2024 | No storm report | 1,113 | 8% | 32 h | 25 h | 15k |
| Jan 12, 2024 | No storm report | 3,016 | 21% | 4.8 h | 4.5 h | 14k |
| Sep 2, 2020 | No storm report | 3,385 | 23% | 4.8 h | 3.8 h | 13k |
| Jul 13, 2025 | No storm report | 3,558 | 25% | 7.5 h | 3.8 h | 12k |
| May 28, 2024 | Thunderstorms | 708 | 5% | 31 h | – | 11k |
| Feb 9, 2015 | No storm report | 3,258 | 22% | 3.5 h | 3.2 h | 11k |
| Jun 20, 2025 | Heat | 3,583 | 25% | 7.2 h | 6.8 h | 10k |
| Jun 18, 2025 | No storm report | 3,048 | 21% | 2.8 h | 1.5 h | 8.4k |
| Apr 26, 2023 | Thunderstorms | 2,258 | 16% | 13 h | 12 h | 8.3k |
| May 28, 2017 | No storm report | 473 | 3% | 18 h | – | 7.7k |
| May 13, 2025 | No storm report | 1,290 | 9% | 6.0 h | 3.2 h | 7.7k |
| May 6, 2025 | No storm report | 912 | 6% | 18 h | 17 h | 7.2k |
| Dec 27, 2018 | No storm report | 1,140 | 8% | 15 h | 15 h | 6.8k |
| May 30, 2024 | Thunderstorms | 330 | 2% | 20 h | – | 5.2k |
| Aug 18, 2019 | Heat | 1,160 | 8% | 8.0 h | 5.5 h | 5.0k |
| Mar 30, 2025 | Thunderstorms | 1,021 | 7% | 11 h | 7.8 h | 4.9k |
| May 8, 2020 | No storm report | 1,934 | 13% | 3.8 h | 2.0 h | 4.7k |
| Jun 10, 2023 | Thunderstorms | 327 | 2% | 20 h | – | 4.3k |
| Mar 3, 2023 | Thunderstorms | 743 | 5% | 13 h | 12 h | 4.1k |
| Apr 3, 2018 | No storm report | 555 | 4% | 8.2 h | – | 4.0k |
| Oct 19, 2019 | No storm report | 500 | 3% | 9.5 h | – | 4.0k |
| Jul 30, 2015 | Heat | 1,101 | 8% | 4.2 h | 2.2 h | 4.0k |
After the peak
How fast the lights come back
Each line is one major outage, from its peak. The amber line is the typical path.
When it happens
The outage clock
Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.
What was happening
Weather behind the outages
Each outage is matched to NOAA storm reports for Shelby from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.
- No storm on record 27%
- Tropical storm 21%
- Heat 15%
- Winter storm 13%
- Thunderstorms 13%
- Flooding 10%
- Tornadoes 0.7%
Who keeps the lights on
Utilities serving Shelby
As each utility reports to the Energy Information Administration for its whole Texas territory, not this county alone. Outage minutes include major storm days.
| Utility | Type | Outage min / yr | Excl. major storms | Outages / yr | Residential ¢/kWh | Customers |
|---|---|---|---|---|---|---|
| Southwestern Electric Power Co | Investor Owned | 467 | 312 | 2.98 | 12.6 | 157k |
| Deep East Texas Elec Coop Inc | Cooperative | 1,119 | 1,119 | – | 14.1 | 41k |
| Rusk County Electric Coop, Inc | Cooperative | 587 | 357 | – | 13.3 | 18k |
EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.
Next door
Neighbouring counties
- Sabine, LA 47 h
- San Augustine 32 h
- Sabine 25 h
- De Soto, LA 24 h
- Rusk 21 h
- Panola 16 h
- Nacogdoches 13 h
- Shelby (this county) 8.0 h
About these numbers
Notes
Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 14,484 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →